orcus | de0abb05a3ab58a6d7347837f219f7dbc84814d553eb2e28a393a2ebac90b565

Analysis

max time kernel
149s
max time network
148s
platform
windows7_x64
resource
win7-20240903-en
resource tags

arch:x64arch:x86image:win7-20240903-enlocale:en-usos:windows7-x64system
submitted
20-01-2025 14:06

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General

Target

9E01A75033D1B6A32628E48F855E8D38.exe
Size

995KB
MD5

9e01a75033d1b6a32628e48f855e8d38
SHA1

468634240b604340bbbb5b921df925c3f395fcf9
SHA256

de0abb05a3ab58a6d7347837f219f7dbc84814d553eb2e28a393a2ebac90b565
SHA512

a9b3473359edb262d3a6d6cef8d2b2e8744e8a2ad6fc29cc0d003646d58a50a0c5cdf912699ee8bf1ba898f6b52ab117386d0bcc26ac837fe5b6d5c2cd204356
SSDEEP

24576:0NCnod4Mp+xnFN3Fs33SCarsvIENFIUHj/r1g:EOzM6zFs3CCarsvIENFIUHbrW

Score

10^/10

orcus discovery persistence rat spyware stealer

Malware Config

Signatures

Orcus
Orcus is a Remote Access Trojan that is being sold on underground forums.
rat spyware stealer orcus
Orcus family
orcus

Orcus main payload 1 IoCs

resource	yara_rule
behavioral1/files/0x0008000000015689-11.dat	family_orcus

Orcurs Rat Executable 3 IoCs

resource	yara_rule
behavioral1/memory/2316-1-0x0000000000D00000-0x0000000000DFA000-memory.dmp	orcus
behavioral1/files/0x0008000000015689-11.dat	orcus
behavioral1/memory/2732-19-0x0000000001110000-0x000000000120A000-memory.dmp	orcus

Executes dropped EXE 4 IoCs

pid	Process
2732	Network.exe
2608	Network.exe
2312	Watchdog.exe
1896	Watchdog.exe

Loads dropped DLL 2 IoCs

pid	Process
2316	9E01A75033D1B6A32628E48F855E8D38.exe
2732	Network.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-3063565911-2056067323-3330884624-1000\Software\Microsoft\Windows\CurrentVersion\Run\Server = "\"C:\\Program Files (x86)\\Server\\Network.exe\""	Network.exe

Drops file in Program Files directory 3 IoCs

description	ioc	Process
File opened for modification	C:\Program Files (x86)\Server\Network.exe	9E01A75033D1B6A32628E48F855E8D38.exe
File created	C:\Program Files (x86)\Server\Network.exe.config	9E01A75033D1B6A32628E48F855E8D38.exe
File created	C:\Program Files (x86)\Server\Network.exe	9E01A75033D1B6A32628E48F855E8D38.exe

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

System Location Discovery: System Language Discovery 1 TTPs 5 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Watchdog.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	9E01A75033D1B6A32628E48F855E8D38.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Network.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Network.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	Watchdog.exe

Suspicious behavior: EnumeratesProcesses 64 IoCs

pid	Process
1896	Watchdog.exe
1896	Watchdog.exe
2732	Network.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
1896	Watchdog.exe
2732	Network.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
2732	Network.exe
1896	Watchdog.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
2732	Network.exe
1896	Watchdog.exe
1896	Watchdog.exe
2732	Network.exe
2732	Network.exe
1896	Watchdog.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
1896	Watchdog.exe
2732	Network.exe
2732	Network.exe
1896	Watchdog.exe
1896	Watchdog.exe
2732	Network.exe

Suspicious use of AdjustPrivilegeToken 3 IoCs

description	pid	Process
Token: SeDebugPrivilege	2732	Network.exe
Token: SeDebugPrivilege	2312	Watchdog.exe
Token: SeDebugPrivilege	1896	Watchdog.exe

Suspicious use of FindShellTrayWindow 1 IoCs

pid	Process
2732	Network.exe

Suspicious use of SendNotifyMessage 1 IoCs

pid	Process
2732	Network.exe

Suspicious use of WriteProcessMemory 16 IoCs

description	pid	Process	procid_target
PID 2316 wrote to memory of 2732	2316	9E01A75033D1B6A32628E48F855E8D38.exe	30
PID 2316 wrote to memory of 2732	2316	9E01A75033D1B6A32628E48F855E8D38.exe	30
PID 2316 wrote to memory of 2732	2316	9E01A75033D1B6A32628E48F855E8D38.exe	30
PID 2316 wrote to memory of 2732	2316	9E01A75033D1B6A32628E48F855E8D38.exe	30
PID 2616 wrote to memory of 2608	2616	taskeng.exe	32
PID 2616 wrote to memory of 2608	2616	taskeng.exe	32
PID 2616 wrote to memory of 2608	2616	taskeng.exe	32
PID 2616 wrote to memory of 2608	2616	taskeng.exe	32
PID 2732 wrote to memory of 2312	2732	Network.exe	33
PID 2732 wrote to memory of 2312	2732	Network.exe	33
PID 2732 wrote to memory of 2312	2732	Network.exe	33
PID 2732 wrote to memory of 2312	2732	Network.exe	33
PID 2312 wrote to memory of 1896	2312	Watchdog.exe	34
PID 2312 wrote to memory of 1896	2312	Watchdog.exe	34
PID 2312 wrote to memory of 1896	2312	Watchdog.exe	34
PID 2312 wrote to memory of 1896	2312	Watchdog.exe	34

C:\Users\Admin\AppData\Local\Temp\9E01A75033D1B6A32628E48F855E8D38.exe
"C:\Users\Admin\AppData\Local\Temp\9E01A75033D1B6A32628E48F855E8D38.exe"
1⤵
- Loads dropped DLL
- Drops file in Program Files directory
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2316
- C:\Program Files (x86)\Server\Network.exe
  "C:\Program Files (x86)\Server\Network.exe"
  2⤵
  - Executes dropped EXE
  - Loads dropped DLL
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - Suspicious use of FindShellTrayWindow
  - Suspicious use of SendNotifyMessage
  - Suspicious use of WriteProcessMemory
  PID:2732
- - C:\Users\Admin\AppData\Roaming\Watchdog.exe
    "C:\Users\Admin\AppData\Roaming\Watchdog.exe" /launchSelfAndExit "C:\Program Files (x86)\Server\Network.exe" 2732 /protectFile
    3⤵
    - Executes dropped EXE
    - System Location Discovery: System Language Discovery
    - Suspicious use of AdjustPrivilegeToken
    - Suspicious use of WriteProcessMemory
    PID:2312
  - - C:\Users\Admin\AppData\Roaming\Watchdog.exe
      "C:\Users\Admin\AppData\Roaming\Watchdog.exe" /watchProcess "C:\Program Files (x86)\Server\Network.exe" 2732 "/protectFile"
      4⤵
      Executes dropped EXE
      System Location Discovery: System Language Discovery
      Suspicious behavior: EnumeratesProcesses
      Suspicious use of AdjustPrivilegeToken
      PID:1896

C:\Windows\system32\taskeng.exe
taskeng.exe {5084566D-1988-4FC7-B0EC-E75E6F6F96BE} S-1-5-21-3063565911-2056067323-3330884624-1000:KHBTHJFA\Admin:Interactive:[1]
1⤵
- Suspicious use of WriteProcessMemory
PID:2616
- C:\Program Files (x86)\Server\Network.exe
  "C:\Program Files (x86)\Server\Network.exe"
  2⤵
  - Executes dropped EXE
  - System Location Discovery: System Language Discovery
  PID:2608

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

System Information Discovery

T1082

System Location Discovery

T1614

System Language Discovery

T1614.001

Lateral Movement

Collection

Command and Control

Exfiltration

Impact

Replay Monitor

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Downloads

C:\Program Files (x86)\Server\Network.exe.config

Filesize
357B

MD5
a2b76cea3a59fa9af5ea21ff68139c98

SHA1
35d76475e6a54c168f536e30206578babff58274

SHA256
f99ef5bf79a7c43701877f0bb0b890591885bb0a3d605762647cc8ffbf10c839

SHA512
b52608b45153c489419228864ecbcb92be24c644d470818dfe15f8c7e661a7bcd034ea13ef401f2b84ad5c29a41c9b4c7d161cc33ae3ef71659bc2bca1a8c4ad

Download Submit
C:\Users\Admin\AppData\Local\Temp\Cab7F30.tmp

Filesize
70KB

MD5
49aebf8cbd62d92ac215b2923fb1b9f5

SHA1
1723be06719828dda65ad804298d0431f6aff976

SHA256
b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f

SHA512
bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b

Download Submit
C:\Users\Admin\AppData\Roaming\Watchdog.exe

Filesize
9KB

MD5
913967b216326e36a08010fb70f9dba3

SHA1
7b6f8c2eb5b443e03c212b85c2f0edb9c76ad2bf

SHA256
8d880758549220154d2ff4ee578f2b49527c5fb76a07d55237b61e30bcc09e3a

SHA512
c6fcb98d9fd509e9834fc3fba143bd36d41869cc104fbce5354951f0a6756156e34a30796baaa130dd45de3ed96e039ec14716716f6da4569915c7ef2d2b6c33

Download Submit
\Program Files (x86)\Server\Network.exe

Filesize
995KB

MD5
9e01a75033d1b6a32628e48f855e8d38

SHA1
468634240b604340bbbb5b921df925c3f395fcf9

SHA256
de0abb05a3ab58a6d7347837f219f7dbc84814d553eb2e28a393a2ebac90b565

SHA512
a9b3473359edb262d3a6d6cef8d2b2e8744e8a2ad6fc29cc0d003646d58a50a0c5cdf912699ee8bf1ba898f6b52ab117386d0bcc26ac837fe5b6d5c2cd204356

Download Submit
memory/2312-35-0x0000000000D30000-0x0000000000D38000-memory.dmp

Filesize
32KB

Download
memory/2316-3-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2316-6-0x0000000000460000-0x0000000000468000-memory.dmp

Filesize
32KB

Download
memory/2316-5-0x0000000000430000-0x0000000000442000-memory.dmp

Filesize
72KB

Download
memory/2316-4-0x00000000009F0000-0x0000000000A4C000-memory.dmp

Filesize
368KB

Download
memory/2316-2-0x0000000000300000-0x000000000030E000-memory.dmp

Filesize
56KB

Download
memory/2316-0-0x000000007489E000-0x000000007489F000-memory.dmp

Filesize
4KB

Download
memory/2316-17-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2316-1-0x0000000000D00000-0x0000000000DFA000-memory.dmp

Filesize
1000KB

Download
memory/2732-18-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2732-22-0x0000000000C50000-0x0000000000C9E000-memory.dmp

Filesize
312KB

Download
memory/2732-23-0x0000000000D40000-0x0000000000D58000-memory.dmp

Filesize
96KB

Download
memory/2732-24-0x0000000000D60000-0x0000000000D70000-memory.dmp

Filesize
64KB

Download
memory/2732-21-0x00000000002C0000-0x00000000002D2000-memory.dmp

Filesize
72KB

Download
memory/2732-20-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2732-19-0x0000000001110000-0x000000000120A000-memory.dmp

Filesize
1000KB

Download
memory/2732-53-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download
memory/2732-54-0x0000000074890000-0x0000000074F7E000-memory.dmp

Filesize
6.9MB

Download